Corner to Corner Stitch and Learning how to read Crochet Diagrams The Corner to Corner stitch is an easy crochet stitch that is useful in scarves, baby blankets and afghans. Even though there are excellent patterns and even videos to use, customers still come to the store confused. Learn how to do this wonderful stitch and at the same time, learn how to read a crochet diagram. Expand and improve your crochet techniques!